Athlete's foot is an aggravating and highly contagious fungal infection of the foot. Here's what you need to know to get rid of it.

Have scaly, itchy skin? You might have psoriasis. Here are the skin condition's symptoms, causes, types, and treatments.

Chlorella and spirulina are algae with miraculous-sounding health claims. But these supplements have some fundamental differences—here's what nutrition experts need you to know.